User blog comment:Sefiros2211/Dante's Age/@comment-177.68.127.18-20130525211202

DMC 1: 28

DMC 2: mid 30 years

DMC 3: 19

DMC 4: 29

DmC: Is not same Dante, and is not part of DMC by Capcom original series, but i belive his has 20-24 Years.